package com.matrix.yukun.matrix.util;

/**
 * author: kun .
 * date:   On 2019/9/3
 */

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;

import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;

import java.security.MessageDigest;

/**

 * 加载圆形头像带白色边框

 */

public class GlideCircleWithBorder extends BitmapTransformation {

    private Paint mBorderPaint;

    private float mBorderWidth;



    public GlideCircleWithBorder(Context context) {

        super(context);

    }



    public GlideCircleWithBorder(Context context, int borderWidth, int borderColor) {

        super(context);

        mBorderWidth = Resources.getSystem().getDisplayMetrics().density * borderWidth;


        mBorderPaint = new Paint();

        mBorderPaint.setDither(true);

        mBorderPaint.setAntiAlias(true);

        mBorderPaint.setColor(borderColor);

        mBorderPaint.setStyle(Paint.Style.STROKE);

        mBorderPaint.setStrokeWidth(mBorderWidth);

    }



    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {

        return circleCrop(pool, toTransform);

    }



    private Bitmap circleCrop(BitmapPool pool, Bitmap source) {

        if (source == null) {

            return null;

        }

        int size = (int) (Math.min(source.getWidth(), source.getHeight()) - (mBorderWidth / 2));

        int x = (source.getWidth() - size) / 2;

        int y = (source.getHeight() - size) / 2;

        Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);

        Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);

        if (result == null) {

            result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);

        }

        //创建画笔 画布 手动描绘边框

        Canvas canvas = new Canvas(result);

        Paint paint = new Paint();

        paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));

        paint.setAntiAlias(true);

        float r = size / 2f;

        canvas.drawCircle(r, r, r, paint);

        if (mBorderPaint != null) {

            float borderRadius = r - mBorderWidth / 2;

            canvas.drawCircle(r, r, borderRadius, mBorderPaint);

        }

        return result;

    }



    @Override

    public void updateDiskCacheKey(MessageDigest messageDigest) {



    }

}
